It's been less than a month since Glee star Cory Monteith was found dead in a hotel room in Canada, but as they say in the business, the show must go on. And has it ever. Glee started filming last week, and Monteith's long-time girlfriend Lea Michele is already back in the studio, recording songs.

Beautiful songs, from the sound of it (I know, if they come out of her mouth, they're bound to sound gorgeous, but bear with me).

Lea returned to work late last week, admitting she'd missed Rachel Berry "so much." But this week she had to drive back into the song booth, recording the music that will play behind the acting. And as painful as it might have been -- she often sang duets with Cory -- Lea turned to Twitter to share her strength with us:

Couldn't have picked a more beautiful & perfect song to start the year with..

She thanks brothers Alex and Adam Anders, music producers on the show for supporting her in the booth. Adam recently retweeted a note from Lea that Cory will forever be in her heart while Alex commended her strength and "sweet spirit."

Of course Cory will be in her heart. There's no button we can push to turn off the grief, and the upcoming tribute episode, expected to be the third in the Glee line-up this season, must be weighing heavily on the cast. From what we know of the storyline, it will deal directly with the very thing that took Cory's life -- drugs. And Lea's voice will be heard.

She's not whining about it. She's looking to it as a haven, a place to draw strength from. She's throwing herself into her singing and her acting, and she's finding beauty in this world.

Some have called her a diva over the years, but that's not what we're seeing from her in the midst of what may well be one of the worst times of her life. We're seeing a pillar of strength, a woman who it's hard not to admire ... and want to give a big hug at the same time.

The music she's making right now is bound to be beautiful not just because of song choice, but because of the emotion she's channeling into it.

Mark my words, you're going to want to watch Glee this season to hear it.